Title of article
Synthesis of 3,8,13,18-tetrachloro-2,7,12,17-tetramethoxyporphyrin
Author/Authors
Rana، نويسنده , , Anup and Panda، نويسنده , , Pradeepta K.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
5
From page
2697
To page
2701
Abstract
Vilsmeier–Haack formylation of 3,4-dimethoxypyrrole led to the unprecedented formation of 3-chloro-4-methoxypyrrole-2-aldehyde instead of the desired dialdehyde. Subsequent reduction and acid catalyzed cyclization led to the formation of type I, 3,8,13,18-tetrachloro-2,7,12,17-tetramethoxyporphyrin in approximately 6% yield.
Keywords
?-Tetrachlorotetramethoxyporphyrin , 3 , 3-Chloro-4-methoxypyrrole-2-aldehyde , 4-Dimethoxypyrrole , Vilsmeier–Haack formylation of pyrrole , Asymmetric pyrrole
Journal title
Tetrahedron Letters
Serial Year
2011
Journal title
Tetrahedron Letters
Record number
1878255
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